Equivalent & Substitute Parts for AS3PDHM3/86A

Part Overview

The AS3PDHM3/86A is an avalanche diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 200 V DC reverse voltage with 2.1 A average rectified current. The device is packaged in a surface mount TO-277A (SMPC) configuration and qualifies for automotive applications under AEC-Q101 certification. The part is currently discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	2.1	A
Voltage - Forward (Vf) (Max) @ If	920 mV @ 1.5 A	mV @ A
Reverse Recovery Time (trr)	1.2	µs
Current - Reverse Leakage @ Vr	10	µA @ 200 V
Capacitance @ Vr, F	37	pF @ 4V, 1MHz
Operating Temperature - Junction	-55 to 175	°C
Package / Case	TO-277, 3-PowerDFN	—
Mounting Type	Surface Mount	—
Technology	Avalanche	—
Grade	Automotive	—
Qualification	AEC-Q101	—

Substitute Part Grouping Explanation

Substitution of the AS3PDHM3/86A is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

Voltage - DC Reverse (Vr) (Max): 200 V
Current - Average Rectified (Io): 2.1 A
Reverse Recovery Time (trr): 1.2 µs
Current - Reverse Leakage @ Vr: 10 µA @ 200 V
Capacitance @ Vr, F: 37 pF @ 4V, 1MHz
Operating Temperature - Junction: -55°C to 175°C

Mechanical Parameters (Must Match):

Package / Case: TO-277, 3-PowerDFN
Mounting Type: Surface Mount
Supplier Device Package: TO-277A (SMPC)

Compliance Parameters (Must Match):

Technology: Avalanche
Grade: Automotive
Qualification: AEC-Q101
RoHS Status: ROHS3 Compliant

Substitute parts are grouped into two categories: Direct Manufacturer Equivalents (identical part numbers with different packaging designations) and Parametric Equivalents (alternative part numbers with identical electrical and mechanical specifications).

Parameter Comparison

Parameter	AS3PDHM3/86A (Main)	AS3PDHM3_A/H	AS3PD-M3/86A	AS3PD-M3/87A
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	200 V	200 V
Current - Average Rectified (Io)	2.1 A	2.1 A	2.1 A	2.1 A
Voltage - Forward (Vf) (Max) @ If	920 mV @ 1.5 A	1.1 V @ 3 A	920 mV @ 1.5 A	920 mV @ 1.5 A
Reverse Recovery Time (trr)	1.2 µs	1.2 µs	1.2 µs	1.2 µs
Current - Reverse Leakage @ Vr	10 µA @ 200 V	10 µA @ 200 V	10 µA @ 200 V	10 µA @ 200 V
Capacitance @ Vr, F	37 pF @ 4V, 1MHz	37 pF @ 4V, 1MHz	37 pF @ 4V, 1MHz	37 pF @ 4V, 1MHz
Operating Temperature - Junction	-55°C to 175°C	-55°C to 175°C	-55°C to 175°C	-55°C to 175°C
Package / Case	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN	TO-277, 3-PowerDFN
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Technology	Avalanche	Avalanche	Avalanche	Avalanche
Grade	Automotive	Automotive	—	—
Qualification	AEC-Q101	AEC-Q101	—	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Discontinued at DiGi Electronics	Active	Active	Active
Packaging Type	Bulk	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)

Engineering Selection Recommendations

AS3PDHM3_A/H is a direct manufacturer equivalent with active product status. This part maintains all electrical parameters and automotive qualification (AEC-Q101) required for the AS3PDHM3/86A application. The primary difference is packaging format (Tape & Reel versus bulk) and forward voltage measurement conditions (1.1 V @ 3 A versus 920 mV @ 1.5 A). Both measurements are within the same device characteristics and do not affect functional equivalence. This part is the preferred substitute for new production and repair applications requiring automotive-grade avalanche diodes.

AS3PD-M3/86A is a parametric equivalent with active product status and identical electrical specifications to the main part. This part provides direct functional replacement with matching forward voltage characteristics (920 mV @ 1.5 A). Automotive grade and AEC-Q101 qualification information is not provided in the available data; however, all electrical and mechanical parameters are identical to the main part. This part is suitable for applications where the specific part number variant is not critical.

AS3PD-M3/87A is a parametric equivalent with active product status and identical electrical specifications to the main part. This part provides direct functional replacement with matching forward voltage characteristics (920 mV @ 1.5 A). Automotive grade and AEC-Q101 qualification information is not provided in the available data; however, all electrical and mechanical parameters are identical to the main part. This part is suitable for applications where the specific part number variant is not critical.

All substitute parts are ROHS3 compliant and maintain the same TO-277A (SMPC) surface mount package configuration, ensuring mechanical and thermal compatibility with existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can AS3PDHM3_A/H be used as a direct replacement for AS3PDHM3/86A?

A: Yes. AS3PDHM3_A/H is a direct manufacturer equivalent with identical electrical parameters, package configuration, and automotive qualification. The part is currently in active production status. The primary difference is packaging format (Tape & Reel versus bulk) and forward voltage measurement conditions, which do not affect functional equivalence.

Q: What is the difference between AS3PDHM3/86A and AS3PD-M3/86A?

A: Both parts share identical electrical specifications, reverse voltage rating (200 V), current rating (2.1 A), and package configuration (TO-277A SMPC). The difference is in the part number designation. AS3PD-M3/86A is in active production status, whereas AS3PDHM3/86A is discontinued. Both are suitable for the same applications.

Q: Are AS3PD-M3/86A and AS3PD-M3/87A interchangeable?

A: Yes. Both parts have identical electrical parameters, voltage ratings, current ratings, and package configurations. The difference is in the part number suffix (/86A versus /87A), which typically indicates manufacturing date code or internal revision. Both parts are in active production status and are functionally equivalent.

Q: Does the forward voltage difference between AS3PDHM3_A/H (1.1 V @ 3 A) and AS3PDHM3/86A (920 mV @ 1.5 A) affect substitution?

A: No. The forward voltage measurements are taken at different current levels (3 A versus 1.5 A). Both measurements characterize the same device and reflect normal variation in forward voltage across the operating current range. The measurements are not contradictory and do not prevent functional substitution.

Q: Is the TO-277A (SMPC) package compatible with existing PCB designs for AS3PDHM3/86A?

A: Yes. All substitute parts use the identical TO-277, 3-PowerDFN surface mount package designation (TO-277A SMPC). PCB footprints, thermal management, and mechanical mounting are fully compatible.

Q: Are all substitute parts automotive-grade and AEC-Q101 qualified?

A: AS3PDHM3_A/H is explicitly qualified as automotive-grade with AEC-Q101 certification. AS3PD-M3/86A and AS3PD-M3/87A have identical electrical and mechanical specifications but do not have automotive grade or AEC-Q101 qualification explicitly stated in available data. For applications requiring automotive qualification, AS3PDHM3_A/H is the recommended substitute.

Q: What is the difference between bulk packaging and Tape & Reel (TR) packaging?

A: Bulk packaging supplies components in loose form, suitable for manual assembly or small-quantity applications. Tape & Reel (TR) packaging supplies components on continuous tape for automated pick-and-place assembly equipment. Both packaging formats contain identical components; the difference is in handling and assembly method.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts (AS3PDHM3_A/H, AS3PD-M3/86A, and AS3PD-M3/87A) are ROHS3 compliant, matching the compliance status of the main part AS3PDHM3/86A.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message